Operating Segment, Geographic Information and Significant Customers - Net Revenue by End Application (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 03, 2020	Mar. 27, 2020	Dec. 27, 2019	Sep. 27, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jul. 03, 2020	Jun. 30, 2019	Jun. 30, 2018
Revenue from External Customer [Line Items]
Net revenues	$ 217,377	$ 208,016	$ 193,913	$ 177,304	$ 176,963	$ 174,636	$ 159,089	$ 144,056	$ 796,610	$ 654,744	$ 493,184
Radar End User Applications
Revenue from External Customer [Line Items]
Net revenues									233,967	164,046	159,737
Electronic Warfare End User Applications
Revenue from External Customer [Line Items]
Net revenues									161,782	128,841	114,801
Other Sensor And Effector Applications [Member]
Revenue from External Customer [Line Items]
Net revenues									105,175	90,245	48,088
Total Sensor And Effector Applications [Member]
Revenue from External Customer [Line Items]
Net revenues									500,924	383,132	322,626
C4I Applications [Member]
Revenue from External Customer [Line Items]
Net revenues									207,000	183,172	87,414
Other End User Applications
Revenue from External Customer [Line Items]
Net revenues									$ 88,686	$ 88,440	$ 83,144